It will be hard for the vortec heads to come close to those aluminum trick flow heads. I guess depends wether you are after saving money or making power. The vortec heads will be cheaper but the the trickflow top end will make more power. Also depending wether you get a custom converter made or buy one from like hughes or tci you need to look cam timing figures.

I just finished building a street 406 two months ago. It has vortec heads and I'm pretty happy with it. I can see how it might run out of steam at higher RPMs, but it wasn't worth the extra coin for new heads. I compared stock vortecs to the AFR heads on a dyno program and the projected gains weren't worth 2K for me since I am not going to race it. It's definitely fun to drive though.

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.

User Name:

Password

Please enter a password for your user account. Note that passwords are case-sensitive.

Password:

Confirm Password:

Email Address

Please enter a valid email address for yourself.

Email Address:

Insurance

Please select your insurance company (Optional)

Log-in

User Name

Remember Me?

Password

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.